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Gingivitis is a form of gum disease that happens when plaque, a naturally-occurring sticky film containing bacteria, builds up on teeth and causes the inflammation of the surrounding gum tissue. Plaque produces toxins that irritate the gums. This can cause the gums to become inflamed, making them red or puffy, or causing them to bleed. This harmful plaque bacteria can even lead to issues beyond gingivitis like weakened tooth enamel. Even with regular brushing, it's important to make sure you’re taking care of your gum line, because a healthy mouth starts there.

There are two main categories of gingival diseases:

Dental plaque-induced gingival disease: This can be caused by plaque, systemic factors, medications, or malnutrition.

Non-plaque induced gingival lesions: This can be caused by a specific bacterium, virus, or fungus. It might also be caused by genetic factors, systemic conditions (including allergic reactions and certain illnesses), wounds, or reactions to foreign bodies, such as dentures. Sometimes, there is no specific cause.

The most common cause of gingivitis is the accumulation of bacterial plaque between and around the teeth. The plaque triggers an immune response, which, in turn, can eventually lead to the destruction of gingival, or gum, tissue. It may also, eventually, lead to further complications, including the loss of teeth.

Dental plaque is a biofilm that accumulates naturally on the teeth. It is usually formed by colonizing bacteria that are trying to stick to the smooth surface of a tooth.

 

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A cavity, also called tooth decay, is a hole that forms in your tooth. Cavities start small and gradually become bigger when they’re left untreated. Because many cavities don’t cause pain in the beginning, it can be hard to realize that a problem exists. Regular dental appointments can detect tooth decay early.

Cavities and tooth decay are among the world's most common health problems. They're especially common in children, teenagers and older adults. But anyone who has teeth can get cavities, including infants.

If cavities aren't treated, they get larger and affect deeper layers of your teeth. They can lead to a severe toothache, infection and tooth loss. Regular dental visits and good brushing and flossing habits are your best protection against cavities and tooth decay.

The signs and symptoms of cavities vary, depending on their extent and location. When a cavity is just beginning, you may not have any symptoms at all. As the decay gets larger, it may cause signs and symptoms such as:

• Toothache, spontaneous pain or pain that occurs without any apparent cause


• Tooth sensitivity


• Mild to sharp pain when eating or drinking something sweet, hot or cold


• Visible holes or pits in your teeth


• Brown, black or white staining on any surface of a tooth


• Pain when you bite down

 

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Wisdom teeth are the third set of molars located in the very back of the mouth. They are the last teeth to grow in, usually between the ages of 17 and 21.

In many people, wisdom teeth are unable to grow in normally. The teeth either become stuck under the gum or are only able to partially break through the gum.

Dentists call these teeth impacted. Wisdom teeth usually become impacted because the jaw doesn't have enough space for all the teeth that are growing in, or because the tooth comes in at the wrong angle and bumps into the tooth in front of it.

Impacted wisdom teeth are fairly common. Although some people never have any trouble with them, impacted wisdom teeth can cause problems. An impacted wisdom tooth can sometimes trap food, plaque, and other debris in the soft tissue around it, leading to swelling, gum tenderness, cavities, and bad breath.

Because they may damage other teeth — or cause pain or infection — dentists or oral surgeons often remove impacted wisdom teeth.

 

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